OCR A2 Biology F214 unofficial mark scheme

Original post by m'k

I wrote caretanoid not caratene! FML

I also wrote that! It could still get the mark as that is the general name given to them

Reply 184

Original post by 2102

Using this i only got 34 ish out of 60... I'm aiming for an A fml

last year that was just about an E. You had to get 33/60 just to get an E! I'm scewed :frown:

Reply 185

xT4Z1N4TRx

Original post by nikhil95

The answer for parasite one is..parasite lives with a mutualistic relation with the host, so if it uses hosts O2 the host cannot survive and both parasite and host die. Also parasite doesn't move around as much so 2 ATP from glycolysis is enough and plus they are facultative anaerobes

parasites aren't mutualistic. " Parasite*- Lives on/in host and harms it, whilst taking nutrition from host" - that is the official AS definition, so not mutualistic

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Reply 186

Original post by flyhigh99

Why is it a contradiction? GP stands for glycerate-3-phosphate?

I also wrote GP :smile:

Reply 187

For enzyme I just said RUP will you get a mark? and I also writ just 'steroid' and diabetes. I really hope the grade boundaries go REALLY LOW like 20%E, 30%D, 40%C, 50%B, 60%A :s-smilie:

Reply 188

Original post by trish25

Erghh for the fruits and veg question, i wrote the correct answer down on the page, but then i started having doubts so i wrote my alternate answer on an extra sheet. Do you guys know which one they'll mark? :frown:

They mark your first answer on the page so you should be fine :smile:

Reply 189

Original post by CallumHall57

Glucose levels higher in test because the person had been fasting, so blood glucose levels fall. This stimulates secretion of glucagon, glycogenolysis/gluconeogenesis occur which raises blood glucose levels (higher than normal)

that's what I said too! well kinda, I said high levels of glucagon (which are essentially stored glucose) therefore broken down to release glucose. And I also said something about the person consuming too much glucose before fasting too.. Just in case I got it wrong

Reply 190

God help us all for F215 :cry2:

Reply 191

xT4Z1N4TRx

For why synapses are important, would we get a mark for saying it ensures only strong enough stimuli are passed along? Because I'm sure that was an answer off a past paper

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Reply 192

PurdyGirl101

5

In order for you to get an A* you need to get 90% in the exam

Reply 193

Ché.

Wow...
I actually managed to do it!
It seems, accordingly to the mark scheme attached, I've managed to attain 54/60, which I assume could definitely be an A*?!

I knew I was aiming for it but I still managed to shock myself even though I came out with a straight face, literally... :lol:

To all that had been revising over the last month or so, thanks so much for being up for little any Q+A as that helped a lot!
I hope you've all aced it too - we've got F215 felt to haunt us so let's best that tenfold!

Have an amazing weekends, guys. :biggrin:

Reply 194

xT4Z1N4TRx

Original post by Ché.

Wow...
I actually managed to do it!
It seems, accordingly to the mark scheme attached, I've managed to attain 54/60, which I assume could definitely be an A*?!

I knew I was aiming for it but I still managed to shock myself even though I came out with a straight face, literally... :lol:

To all that had been revising over the last month or so, thanks so much for being up for little any Q+A as that helped a lot!
I hope you've all aced it too - we've got F215 felt to haunt us so let's best that tenfold!

Have an amazing weekends, guys. :biggrin:

that's definitely an A*. I'd say you'll probably get 100%UMS for that, well done man

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Reply 195

Ché.

Original post by xT4Z1N4TRx

For why synapses are important, would we get a mark for saying it ensures only strong enough stimuli are passed along? Because I'm sure that was an answer off a past paper

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I'm sure it'll be on the mark scheme; I added that after my other three answers: acclimatisation, summation, cell signalling between neuronal communication and then that one to back the last point - in line with anyway...

I'm sure it's fine; believe that question came up in January 2013 so you know... Things definitely do repeat faster than we think I guess! :lol:

Reply 196

For the question on anaerobic reaction, why it doesn't use oxygen even though its available? I put something like doesn't need reduced Nad and on the verges of just needs atp (for energy)???

Reply 197

Ché.

Original post by xT4Z1N4TRx

that's definitely an A*. I'd say you'll probably get 100%UMS for that, well done man

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REALLY!?
I thought the full UMS boundary was mega strict due to the amount of A2 Biologists and the more "straight forward" recall based questions in comparison to F215.

Thanks mate, you've made my day actually...
I wasn't really aiming for that you know?
Ah... Buzzing and hopeful!
(Now, I need to some how ace Mathematics and F215 and Chemistry so I can freaking relax a little man! :frown:

)

I hope you've done great...
How did you find it? :smile:

Reply 198

luka_m

1

Original post by imconfused

For enzyme I just said RUP will you get a mark? and I also writ just 'steroid' and diabetes. I really hope the grade boundaries go REALLY LOW like 20%E, 30%D, 40%C, 50%B, 60%A :s-smilie:

it definitely won't be that low, i'd say minimum 73% for A

Reply 199